Prep Time: 10 minutes

Cook Time: 20 minutes

Ingredients:

• 1 medium-sized onion, finely chopped
• 2 small garlic cloves, minced
• 1/4 cup dry white wine or dry sherry
• 1 Tablespoon butter or non-diet canola or safflower oil margarine
• 1-1/2 Tablespoons cornstarch
• 2-3/4 cups 1 percent fat milk
• 1/4 cup grated Parmesan cheese preferably freshly grated (3 ounces)
• 1/2 cup grated nonfat Parmesan cheese topping (2 ounces)
• 1/2 cup nonfat sour cream
• 1/4 cup chopped chives or thin-sliced scallion tops plus more for garnish
• 1 teaspoon Worcestershire sauce
• 1/2 teaspoon Dijon-style mustard
• 1/8 teaspoon white pepper
• Salt, to taste (optional)
• 10 to 12 ounces non-egg fettuccine noodles cooked according to package